/Engine/Source/Runtime/Engine/Classes/Animation/AttributeBlendOperator.h
Interpolate operation for blendable; non-step interpolated attribute types
template<typename Type> [TEnableIf](API\Runtime\Core\Templates\TEnableIf)< [TAttributeTypeTraits](API\Runtime\Engine\Animation\TAttributeTypeTraits)< Type >::IsBlendable &&![TAttributeTypeTraits](API\Runtime\Engine\Animation\TAttributeTypeTraits)< AttributeType >::StepInterpolate, void >::Type Interpolate_Internal ( const void * FromData, const void * ToData, float Alpha, void * InOutData ) const